Number of the records: 1

Optical trapping in secondary maxima of focused laser beam

SYSNO ASEP	0446044
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Optical trapping in secondary maxima of focused laser beam
Author(s)	Šiler, Martin (UPT-D)_{RID, ORCID, SAI} Zemánek, Pavel (UPT-D)_{RID, SAI, ORCID}
Number of authors	2
Source Title	Journal of Quantitative Spectroscopy and Radiative Transfer. - : Elsevier - ISSN 0022-4073 Roč. 162, SI (2015), s. 114-121
Number of pages	8 s.
Publication form	Print - P
Language	eng - English
Country	GB - United Kingdom
Keywords	optical tweezers ; optical traps ; optical trapstiffness ; focused beam
Subject RIV	BH - Optics, Masers, Lasers
R&D Projects	GPP205/12/P868 GA ČR - Czech Science Foundation (CSF)
	ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UPT-D - RVO:68081731
UT WOS	000357543800012
DOI	10.1016/j.jqsrt.2015.03.003
Annotation	Single beam optical tweezers hold particles behind the focal plane due to the high gradients of optical intensity present in a focused laser beam. However, description of this optical field based on a vectorial theory of diffraction reveals that the high intensity focal area is accompanied by several secondary maxima on the optical axis as well as by a structure of rings away of the optical axis. Such a structure can be found in beams exhibiting spherical aberrations as well as in beams where aberration is corrected. Here, we discuss possibility to use these secondary maxima of aberration-corrected beams as the optical traps. We present the properties of such traps created by objective lenses of various numerical apertures that are focusing plane waves.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2016

Number of the records: 1